APEM is a global leader in aerial survey corridor mapping of natural and human-made linear features. Clients from the utility and construction industries have commissioned us to undertake aerial surveys of their existing linear assets and to map out proposed routes for new installations.

Key projects

  • Water pipeline surveys for leakage detection. Using our multispectral camera systems, we can identify leaks in underground pipelines.
  • Topographic surveys for route optimisation. Our 3D outputs provide a powerful tool to investigate proposed route options, with topographic data and high-resolution imagery flagging up obstacles to construction. We specialise in cable route surveys.
  • Earthworks calculations for new infrastructure projects. Our highly accurate 3D data is used to manage volumes such as stockpiles, embankments and cuttings on construction projects.
  • Vegetation risk assessment for overhead transmission lines. We can map the proximity of vegetation to overhead transmission lines, and identify trees posing a strike risk to the network.
  • Buried pipeline detection. Our multispectral sensors can map the location of pipelines buried several feet below the ground.
  • River habitat surveys and restoration works. We are able to map fish spawning habitats within river channels, identify invasive species and create 3D models of floodplains and river banks.
  • 3D model of power cable route
  • Virtual 3D image of pipe route
  • 3D virtual view of road route from the air

Benefits of aerial surveys for linear asset mapping

Using our specialist camera and image processing technology we capture ultra-high resolution imagery in multiple wavebands from RGB to near-infrared, at a resolution greater than 5 cm GSD.

The data can be used to generate high density topographic datasets such as point clouds, digital surface models and digital terrain models. The data can also be used to create accurate ortho-mosaics, photo-realistic 3D models and 3D virtual flyovers.

Our sensors can survey tens of kilometres of linear assets in a single day – including remote or inaccessible areas – allowing us to provide a snapshot of an entire project from a single survey.

Our innovative approach to corridor mapping removes delays caused by land ownership and access issues, and also brings significant health and safety benefits for our clients by minimising the number of ‘boots on the ground’.

If you have any queries, please contact David Campbell, associate director.
Alternatively you can email us here. Or call 0161 442 8938.